13/16" diameter (20mm)

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4g Titanium Captive Bead Ring
4g Titanium Captive Bead Ring Captive Bead Rings 4g (5mm) - 15/32" dia (12mm) - 6mm bead High Polish (silver)

4g Titanium Captive Bead Ring

1/2" to 7/8"
Price
$13.98
each
4g Titanium Circular Barbell (internal)
4g Titanium Circular Barbell (internal) Circular Barbells 4g - 15/32" diameter (12mm) - 8mm balls High Polish (silver)

4g Titanium Circular Barbell (internal)

15/32"-15/16"
Price
$28.98
each